CN103455009A - Long-distance Ethernet frequency converter - Google Patents
Long-distance Ethernet frequency converter Download PDFInfo
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- CN103455009A CN103455009A CN2013104089880A CN201310408988A CN103455009A CN 103455009 A CN103455009 A CN 103455009A CN 2013104089880 A CN2013104089880 A CN 2013104089880A CN 201310408988 A CN201310408988 A CN 201310408988A CN 103455009 A CN103455009 A CN 103455009A
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Abstract
Provided is a long-distance Ethernet frequency converter. The long-distance Ethernet frequency converter comprises at least one frequency converter body, wherein the frequency converter body comprises an input module, an output module, an ARM, an optoelectronic isolation portion, a power management module and an A/D module, the ARM is electrically connected with the input module, the output module, the optoelectronic isolation portion and the A/D module, and the power management module is electrically connected with the optoelectronic isolation portion. The long-distance Ethernet frequency converter is characterized by further comprising at least one long-distance Ethernet communication module, and the ARM, a network interface controller and an isolation transformer are electrically connected in sequence to form the long-distance Ethernet communication module. The long-distance Ethernet frequency converter can be used independently; when the long-distance Ethernet frequency converter operates in a network mode, control numerical values of the long-distance Ethernet frequency converter can be changed through a TCP message, and the purpose of network control can be achieved. The long-distance Ethernet frequency converter solves the problems that networking cannot be easily carried out on an existing frequency converter, the communication distance is short, and the communication data volume is small, and improves compatibility and expansibility of the network.
Description
Technical field
The invention belongs to Long Range Ethernet network frequency transitions device Communication Control field.
Background technology
Although the networking mechanics of communication between the frequency transitions device has comprised certain development, be all to adopt 232 buses/485 buses, field bus communication basically.These communication modes are because data capability and interstitial content is limited, the problem that comprises following three aspects when reality forms network: the one, be difficult to form the network control network of up to a hundred or more control nodes, 232 buses are because the characteristic of communication distance and ability to communicate aspect can not be accomplished, use the mode of 485 buses to form such network, that has also at least carried out three grades of relayings and has calculated, the stability of network reduces greatly, and the field bus communication technology causes networking and data sharing difficulty because its communications protocol is inconsistent; Second Problem is in the network of large data, needs the occasion of the voltage of controlled frequency converter, and 232 buses/485 buses, field bus communication mode are because its communication speed is difficult to be competent at slowly.
Summary of the invention
The purpose of this invention is to provide a kind of Long Range Ethernet network frequency transitions device, utilize that the Long Range Ethernet communication is reliable, speed is fast, capacity is large, communication distance is far away and be easy to the characteristics of networking, the Long Range Ethernet control technology is incorporated in the control of frequency transitions device, to overcome above-mentioned deficiency.
To achieve these goals, Long Range Ethernet network frequency transitions device of the present invention, comprise at least one frequency transitions device, this frequency transitions device comprises load module, output module, ARM, photoelectricity isolation, power management module and A/D module, ARM is electrically connected to load module, output module, photoelectricity isolation and A/D module respectively, power management module is electrically connected to the photoelectricity isolation, it is characterized in that: also comprise at least one Long Range Ethernet communication part, this assembly is electrically connected to and forms successively by ARM controller, network interface card and isolating transformer.
The using method of Long Range Ethernet network frequency transitions device, it is characterized in that: the Long Range Ethernet formed with Long Range Ethernet network frequency transitions device adopts the principle of message class discrimination to build, according to the real-time of communication data is different with stability, data are fallen into three classes, the strict communication control order according to the difference of grade.
Method as above, it is characterized in that: the network structure formed with Long Range Ethernet network frequency transitions device is connected with the Internet by network A RM, inner Long Range Ethernet adopts the Round Robin of bus, control processor and frequency transitions device all hang under this network, by network A RM communication control.
Method as above is characterized in that: according to the size that forms network, and the repeating query time T in initializtion protocol, thus the utilization factor of assurance network improves network performance.
To achieve these goals, network transformation utensil of the present invention comprises two functional modules---variable frequency control assembly and Long Range Ethernet communication part.Frequency transitions device assembly is the same with the frequency transitions device, possesses the function of frequency control, produces the IWM modulation signal by ARM as controller and isolates the rear drive power management module by photoelectricity, thereby reach the purpose of controlling motor; One from controller to external expansion network interface card of Long Range Ethernet communication part carrys out transceiving data, and the data that receive are by calculating, and real-time numerical value is received on Long Range Ethernet, as bridge, comes rate of connections converter and Long Range Ethernet;
At least one peripheral expansion circuit that above-mentioned Long Range Ethernet communication part is controller in fact, why using the assembly independent as at least one, be because be at least one innovative point of the present invention, we have just comprised design of the present invention because introduced the Long Range Ethernet communication part.The Long Range Ethernet communication part is to expand outside at least one network interface card, and network interface card is connected with Long Range Ethernet by least one isolating transformer again, and this has just formed the hardware foundation of Long Range Ethernet communication.
Above-mentioned variable frequency control assembly consists of controller and peripheral expansion circuit thereof, and the peripheral expansion circuit comprises power management module control circuit, A/D module, LED output module and load module.
The Long Range Ethernet technology that the present invention will now comprise is incorporated in the Communication Control of frequency transitions device, addresses the above problem well, but also reaches the purpose of Long-distance Control and controlled frequency converter duty.
The frequency transitions device that adopts tool to comprise the Long Range Ethernet communication modes can be saved communication cable, simplifies wiring.
Because the present invention merges Long Range Ethernet technology and frequency conversion control technique, solve the frequency transitions device and be difficult for networking, short and the little problem of communication data amount of data transmitting range, but also be easy to extended network, improved compatibility and the extendability of network.The present invention not only strengthened communication stability, increased communication distance, but also large networking is controlled, become a reality.
The accompanying drawing explanation
The frequency transitions device structured flowchart that Fig. 1 is the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail, but following embodiment should not be construed as of the present invention limited.
Referring to Fig. 1, frequency transitions device Control Component of the present invention forms by reaching power management module control circuit, network interface, analog input channel, load module, LED output module, rectification module, power module etc.
Long Range Ethernet network frequency transitions device of the present invention comprises controller and peripheral power management module control circuit, network interface, analog input channel, power module, load module and LED output module etc., as shown in Figure 1.Controller is the control center of whole network; the control data that comprise are all by managing; also by the task manager carried on its sheet, produce the IMW signal and reach by photoelectricity isolation rear drive power management module the purpose of controlling motor simultaneously; task manager on sheet also comprises at least one power drives protection to interrupt; with the alerting signal of TIM module, be connected; when power management module is reported to the police because overcurrent, overheated, under-voltage, short circuit etc. produce; the power drives protection enters interrupt routine; the high-impedance state of IWM output simultaneously, stop power management module work.In addition, also produce the input equipment sweep signal and read the input data, USER by input can set motor frequency, direction, the data such as start and stop, demonstrate the numerical value of frequency transitions device by the LED output module, by the A/D module, by the voltage signal acquisition of controlled device and convert digital signal to, thereby enable to understand in real time the running status of controlled device and running status numerical value is put into to network TCP message, to Long Range Ethernet, receive.The TCP message, except the voltage value that comprises controlled device, also comprises the correlation values such as frequency transitions device frequency, direction, pattern, realizes thus the network control of frequency transitions device.
Long Range Ethernet communication part of the present invention is relatively simple for structure, after chip is carried out to initialization, just can be automatically from Long Range Ethernet reading out data store in the buffer zone of oneself, read the data that receive from network by inquiry, wait for automatic reception in the reception buffer zone after data are calculated, the data that will receive deposited in, so just reached the purpose of frequency transitions device and Long Range Ethernet swap data.
The principle of the employing message class discrimination communication that above-mentioned Long Range Ethernet proposes for us is carried out a kind of network system of data sharing.Communication by network A RM, controlled fully, network A RM is at least one device that our the data communication control algolithm that proposes is carried out, this device adopts the performance element of ARM as the communication algorithm, two network communication interfaces of outside expansion, at least one is connected with the Internet, realizes the exchanges data with the Internet; Another is connected with inner Long Range Ethernet, and ARM, by execution algorithm, determines the communication order of each terminal on inner Long Range Ethernet, thereby realizes Communication Control and the exchanges data to every at least one terminal.Network A RM also realizes the exchanges data of inner Long Range Ethernet and the Internet simultaneously.
Below we highlight message class discrimination principle and the agreement of the Long Range Ethernet that we propose:
One, message class discrimination
The data that we will control in network are divided three classes:
(1) reliable data in real time,
These class data are generally control signal, must in official hour, arrive.
(2) in real time but do not require reliable data
These class data are generally multi-medium data.Multi-medium data requires in real time, such as in talk application,
If speech data is not real-time, conversation just can't normally be carried out so.But stability simultaneously, is so high not as first kind semaphore request again.Because current multi-medium data is generally the employing streaming technology, if lose some messages, can't impact integral body.This is exactly that some shakes appear in picture signal in concrete manifestation, and some noises appear in voice.In order to guarantee real time data, in case of necessity, can abandon some messages.
(3) do not require and do not require in real time reliable data yet
The ILC program of these class data as uploaded.These data also do not require real-time, and stability also can be passed through upper-layer protocol (as TCP or application layer protocol) and guarantee.The priority of these class data is minimum, is in the situation that network idle (do not comprise first and second class data and wait for reception) is just calculated.
Two, agreement
If controlling the time interval of the packet of node is fixing 64Bytes (Tc), TIn is the time that n station receives the data of I priority.
The reception comprised is all to carry out under the control of ARM.Only comprise ARM and send message, in the situation that allows certain website to receive, the website of appointment just can log-on data receive.Network settings at least one of interval T within the time of T, is controlled node according to priority each website of poll from high to low cycling time, and when the poll time is greater than T, control will stop the poll in this time interval, enter down at least one time interval.
Claims (4)
1. a Long Range Ethernet network frequency transitions device, comprise at least one frequency transitions device, this frequency transitions device comprises load module, output module, ARM, photoelectricity isolation, power management module and A/D module, ARM is electrically connected to load module, output module, photoelectricity isolation and A/D module respectively, power management module is electrically connected to the photoelectricity isolation, it is characterized in that: also comprise at least one Long Range Ethernet communication part, this assembly is electrically connected to and forms successively by ARM, network interface card and isolating transformer.
2. the using method of Long Range Ethernet network frequency transitions device, it is characterized in that: the Long Range Ethernet formed with Long Range Ethernet network frequency transitions device adopts the principle of message class discrimination to build, according to the real-time of communication data is different with stability, data are fallen into three classes, the strict communication control order according to the difference of grade.
3. method as claimed in claim 2, it is characterized in that: the network structure formed with Long Range Ethernet network frequency transitions device is connected with the Internet by network A RM, inner Long Range Ethernet adopts the Round Robin of bus, control processor and frequency transitions device all hang under this network, by network A RM communication control.
4. method as claimed in claim 3, is characterized in that: according to the size that forms network, the time slot T in initializtion protocol.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013104089880A CN103455009A (en) | 2013-09-10 | 2013-09-10 | Long-distance Ethernet frequency converter |
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| CN2013104089880A CN103455009A (en) | 2013-09-10 | 2013-09-10 | Long-distance Ethernet frequency converter |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1819535A (en) * | 2005-11-16 | 2006-08-16 | 武汉大学 | Industrial Ethernet frequency converter and utilization thereof |
| CN101515850A (en) * | 2008-02-18 | 2009-08-26 | 瑞昱半导体股份有限公司 | Network signal processing device |
| CN201352314Y (en) * | 2008-12-11 | 2009-11-25 | 淮阴工学院 | Frequency converter Ethernet on-line monitoring device based on TMS320 F2407A DSP |
| US20110150007A1 (en) * | 2009-12-21 | 2011-06-23 | Electronics And Telecommunications Research Institute | Clock operating method and apparatus for supporting ethernet physical layer interfaces |
| KR20110122058A (en) * | 2010-05-03 | 2011-11-09 | 주식회사 케이티 | Repeater and repeater system for relaing various types of communication signal |
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2013
- 2013-09-10 CN CN2013104089880A patent/CN103455009A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1819535A (en) * | 2005-11-16 | 2006-08-16 | 武汉大学 | Industrial Ethernet frequency converter and utilization thereof |
| CN101515850A (en) * | 2008-02-18 | 2009-08-26 | 瑞昱半导体股份有限公司 | Network signal processing device |
| CN201352314Y (en) * | 2008-12-11 | 2009-11-25 | 淮阴工学院 | Frequency converter Ethernet on-line monitoring device based on TMS320 F2407A DSP |
| US20110150007A1 (en) * | 2009-12-21 | 2011-06-23 | Electronics And Telecommunications Research Institute | Clock operating method and apparatus for supporting ethernet physical layer interfaces |
| KR20110122058A (en) * | 2010-05-03 | 2011-11-09 | 주식회사 케이티 | Repeater and repeater system for relaing various types of communication signal |
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Application publication date: 20131218 |